Our source tree for Maverick encompasses all our major supportedplatforms in one git branch. Thus, we have one common config file and abunch of arch and flavour (generic, server, virtual, pae) specificconfig files. One note about the common configs: if a config optionwould not exist because an option in a specific config file is set acertain way, then you can ignore it for that specific arch/flavour. Forexample, the common config has CONFIG_DYNAMIC_FTRACE=y, but the armelconfig has "CONFIG_FUNCTION_TRACER is not set" so the former would nothave any affect on armel builds.

$ grep -Ir "TRAC[EI]" debian.master/config./amd64/config.common.amd64:CONFIG_FUNCTION_TRACER=y./amd64/config.common.amd64:CONFIG_STACK_TRACER=y./i386/config.common.i386:CONFIG_FUNCTION_TRACER=y./i386/config.common.i386:CONFIG_STACK_TRACER=y./armel/config.common.armel:# CONFIG_FUNCTION_TRACER is not set./armel/config.common.armel:# CONFIG_STACK_TRACER is not set./config.common.ubuntu:# CONFIG_BACKTRACE_SELF_TEST is not set./config.common.ubuntu:CONFIG_BLK_DEV_IO_TRACE=y./config.common.ubuntu:# CONFIG_BOOT_TRACER is not set./config.common.ubuntu:CONFIG_CAN_PM_TRACE=y./config.common.ubuntu:CONFIG_CAPI_TRACE=y./config.common.ubuntu:CONFIG_CONTEXT_SWITCH_TRACER=y./config.common.ubuntu:CONFIG_DYNAMIC_FTRACE=y./config.common.ubuntu:CONFIG_EVENT_TRACING=y./config.common.ubuntu:CONFIG_FTRACE=y./config.common.ubuntu:CONFIG_FTRACE_MCOUNT_RECORD=y./config.common.ubuntu:CONFIG_FTRACE_NMI_ENTER=y./config.common.ubuntu:# CONFIG_FTRACE_STARTUP_TEST is not set./config.common.ubuntu:CONFIG_FTRACE_SYSCALLS=y./config.common.ubuntu:CONFIG_FUNCTION_GRAPH_TRACER=y./config.common.ubuntu:CONFIG_GENERIC_TRACER=y./config.common.ubuntu:CONFIG_HAVE_ARCH_TRACEHOOK=y./config.common.ubuntu:CONFIG_HAVE_DYNAMIC_FTRACE=y./config.common.ubuntu:CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y./config.common.ubuntu:CONFIG_HAVE_FTRACE_NMI_ENTER=y./config.common.ubuntu:CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y./config.common.ubuntu:CONFIG_HAVE_FUNCTION_TRACER=y./config.common.ubuntu:CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y./config.common.ubuntu:CONFIG_HAVE_MMIOTRACE_SUPPORT=y./config.common.ubuntu:CONFIG_HAVE_SYSCALL_TRACEPOINTS=y./config.common.ubuntu:# CONFIG_IRQSOFF_TRACER is not set./config.common.ubuntu:CONFIG_IWLWIFI_DEVICE_TRACING=y./config.common.ubuntu:# CONFIG_KMEMTRACE is not set./config.common.ubuntu:# CONFIG_KSYM_TRACER is not set./config.common.ubuntu:CONFIG_MMIOTRACE=y./config.common.ubuntu:# CONFIG_MMIOTRACE_TEST is not set./config.common.ubuntu:CONFIG_NETFILTER_XT_TARGET_TRACE=m./config.common.ubuntu:CONFIG_NOP_TRACER=y./config.common.ubuntu:CONFIG_PM_TRACE=y./config.common.ubuntu:CONFIG_PM_TRACE_RTC=y./config.common.ubuntu:# CONFIG_RCU_TRACE is not set./config.common.ubuntu:CONFIG_SCHED_TRACER=y./config.common.ubuntu:# CONFIG_SCSI_IPR_TRACE is not set./config.common.ubuntu:CONFIG_STACKTRACE=y./config.common.ubuntu:CONFIG_STACKTRACE_SUPPORT=y./config.common.ubuntu:# CONFIG_SYSPROF_TRACER is not set./config.common.ubuntu:CONFIG_TRACEPOINTS=y./config.common.ubuntu:CONFIG_TRACER_MAX_TRACE=y./config.common.ubuntu:CONFIG_TRACE_IRQFLAGS_SUPPORT=y./config.common.ubuntu:CONFIG_TRACING=y./config.common.ubuntu:CONFIG_TRACING_SUPPORT=y./config.common.ubuntu:# CONFIG_TREE_RCU_TRACE is not set./config.common.ubuntu:CONFIG_USER_STACKTRACE_SUPPORT=y./config.common.ubuntu:# CONFIG_VXGE_DEBUG_TRACE_ALL is not set./config.common.ubuntu:# CONFIG_WORKQUEUE_TRACER is not set

Some of the above is not FTRACE. I also snipped the matches inconfig.common.ports because they are slightly different due to what theports architectures support, but they should be pretty similar.